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MRIM-2 Mobile Radio Interface Module

  • Connects between your mobile radio, a single headset, and push-to-talk (PTT) switch — or use it to connect a cellular telephone to your intercom system.
  • Allows two-way radio communication via the Sigtronics emergency headset.
  • Used in high noise applications where radio communication is required, but vehicle intercom is not.
  • All mounting hardware, jack box, switch box (PTT) and wire are included.
  • Warranty: Two years parts and labor.
MRIM-2 Mobile Radio Interface Module
     

Connects between a single headset, push-to-talk (PTT) switch and your mobile radio or cellular phone. Allows two-way radio communication via the Sigtronics’ emergency headsets.

Normal radio operation is possible with the standard hand microphone and speaker. Used in high noise applications where radio communication is required, but vehicle intercom is not.

 

A typical application is at the pump panel or in the driver’s position, when only one person is on the vehicle. In cases where more than one position is required, but with only one headset used at a time, additional jacks and PTTs are available. Other uses are in command vans, heavy equipment vehicles, etc.

For information on using a Bluetooth cell phone with a Sigtronics intercom system, follow this Link

For an emergency system quote, click on this Quote Form link.

 
Model Number Positions Radio Transmit Positions Radio
MRIM-2 1 (addition positions possible) 1 (addition positions possible) Single
 
Usage Notes
The above MRIM-2 provides interface between a Mobile Radio and Headset. It does not provide intercom capabilities and is solely for one person to use at a pump panel or other single position.
Some mobile radios may require an adapter to interface with the Mobile Radio Interface Module. See Mobile Radio Adapters section for information.
Order headsets separately to complete the above systems. As the MRIM-2 system includes a PTT switch, any of our standard headsets will work. If a headset mounted switch is preferred, use a headset with a Mic Push-To-Talk Switch (PTT), not a Radio Push-To-Transmit Switch (RPTT). As the MRIM-2 does not have intercom, a PTT headset will transmit over the radio.
Cellular Telephones
The MRIM-2 is also used for cellular telephone interface. The cellular phone must be hands free capable and have an external speaker / microphone connection.
To switch between the MRIM-2 and an intercom system, use toggle switch kit P/N 800185.
 
PDF Instructions
Installation and Operating Instructions Installation and Operating Instructions
Models: MRIM-2
Special
Installation Instructions
Cellular Interface with MRIM-2
Instructions for using a Sigtronics Intercom System and a Cellular Telephone.
Toggle Switch Kit P/N 800185
Bluetooth Cellular Interface with MRIM-2
Instructions for using a Sigtronics Intercom System and a Bluetooth Cellular Telephone.
Toggle Switch Kit P/N 800185
Cellular Interface with MRIM-2 and RPTT Headset
Wiring diagram using a Sigtronics Intercom System and a Cellular Telephone with a Sigtronics RPTT headset.
Cellular and Radio Interface with Dual MRIM-2 – Audio Select
Wiring diagram using two Sigtronics MRIM-2 systems with a Cellular Telephone and Radio.
Toggle Switch to select audio receive and radio transmit / cellular phone.
Cellular and Radio Interface with Dual MRIM-2 – Audio Both
Wiring diagram using two Sigtronics MRIM-2 systems with a Cellular Telephone and Radio.
Toggle Switch to select radio transmit / cellular phone. Radio and cell phone audio at all times.
Dual Radios and MRIM-2 Interface – Dual PTT Switch
Wiring diagram using two Sigtronics MRIM-2 systems with dual Radios.
Dual PTT switches for radio transmit.
Dual Radios and MRIM-2 Interface – Toggle Switch
Wiring diagram using two Sigtronics MRIM-2 systems with dual Radios.
Toggle switch for radio transmit select.
Three Radios and MRIM-2 Interface – Rotary Switch
Wiring diagram using three Sigtronics MRIM-2 systems with three Radios.
Rotary switch for radio transmit select.
PA System Interfaced to Sigtronics Intercom
Wiring diagram for a PA system interfaced to a Sigtronics intercom through a MRIM-2.

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